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On January 31, 2021, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at or

EPON™ Resin 8131


EPON™ Resin 8131 is a flexibilized, 100 percent reactive, low viscosity epoxy resin for use in various concrete patching/resurfacing, reinforced plastics, adhesives and encapsulating applications.

Sales Specification

Property Standard Value Unit Test Method
Color 5 max. Gardner ASTM D1544
Color 5 max. Gardner ASTM D1544
Viscosity at 25°C 11 - 16 P ASTM D445
Weight per Epoxide 245 - 275 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 9.2 lb/gal ASTM D1475

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